Simons Voss Technologies SmartRelay 3 Manual page 20

SmartRelay 3 system (Manual)
Reader connection
+
-
WP version
The weatherproof WP version of the reader is supplied with a 2 m long,
pre-assembled cable.
Reader connec- Wire colour in
tion cable
A yellow
B brown
green
-
black (brought
out only on the
reader's end)
+ white
SREL3 controller con-
nection
+
- (optional)
SREL3 controller
connection
A1/A2/A3
B1/B2/B3
-
-
+
7. Connections
20 / 189
Signal
V . Connection for
IN
power supply (external
or via controller).
GND. Connection for
external power supply.
Electrically connected
to reader port 3. Only
required with external
power supply.
Signal
RS-485: Data
line A
RS-485: Data
line B
GND. Used to es-
tablish the com-
mon ground ref-
erence potential
for the data lines.
Any ground con-
nection to the
SREL3 controller.
GND. Connection
of the cable
shielding to the
common ground
reference poten-
tial of reader and
controller.
V . Connection
IN
for power supply
(external or via
controller).